The preservability of the chaos synchronization in an intermittent unidirectional coupling semiconductor laser configuration is numerically investigated. By adding additional feedback to the receiver laser, we find that the complete synchronization can be preserved for several tens of nanoseconds after the coupling is cut off, and longer feedback and coupling delays can provide better preservability. Moreover, when the conversion frequency of the coupling is properly high, the synchronization can be preserved all the time. As a consequence of these results, a one-to-two chaos synchronization system is achieved, which provides an opportunity for the implementation of one-to-many and many-to-many chaos synchronization.
© 2011 Optical Society of America
Lasers and Laser Optics
Original Manuscript: October 19, 2010
Revised Manuscript: February 21, 2011
Manuscript Accepted: February 24, 2011
Published: April 12, 2011
Ning Jiang, Wei Pan, Lianshan Yan, Bin Luo, Lei Yang, Shuiying Xiang, and Di Zheng, "Synchronization preservability of intermittent coupling chaotic semiconductor lasers," J. Opt. Soc. Am. B 28, 1062-1066 (2011)